If it's any comfort, I don't think this looks any more difficult than other families so far (although it would be a great help to have more precise dates).
To start with, this is a matter of trawling through BMD indexes to find Norman and Eleanor's marriage. From there, you should be able to purchase the marriage cert which should shows their ages and father's names which in turn, hopefully, will allow us to identify their families in the 1911 census.
Must say I'm not having much luck so far. I've searched 1929 - 1934 for a marriage and couldn't find one for a Norman
C Sutton at all
